Improvement in lamps



W. MQJ AGKSQN.

Lamp,

Patented Feb. 4, 187.9.

I O I FEI'ERS, PHQTOLITHOGRAPH EH. WASHINGTON. D c.

WITNESSESI UNITED STATES PATENT OF ToE.

1 \VALTER M. JACKSON, OF PROVIDENCE, RHODE ISLAND.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent No. 211,850, dated February 4, 1879 application filed October 21, 1878.

To all who/h it may concern:

Be it known that I, WALTER M. JACKSON, of the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvement in Lamps; and l hereby declare that the following is a full, clear, andexactdescription of the same, reference being had to the accompanying drawings, forming part of this specification.

This invention has reference to improvements in coal-oil or other lamps in which oil is burned that may under favorable conditions explode. It is also applicable to oil-stoves and consists in a novel burner attachment for preventing the accumulation of explosive gases within the oil-receptacle of a lamp or oil-stove, as willbe more fully set forth hereinafter, and pointed out in the claim.

In the drawings, Figure 1 is a sectional View of my improved lamp, and Fig. 2 a view of the detachable cylinder.-

(t represents the body of the lamp or oil-reservoir; b, the wick-tube, extending from the diaphragm c to the burner. b is the wick. c is a diaphragm, which, with the diaphragm c and the sides, forms a gas-tight chamber, through which the wick-tube passes, and in which the wick-regulating wheel is located. (Z are holes for admitting air to the burner. g is the central cylinder, made preferably of glass or other transparent material. It is secured to the milled rim It, provided with the screw-thread h, in which the air-passages i i are made, as shown, and can be readily secured to the lamp proper, extending downward to near the bottom, and thus dividing the oil within the cyl inder g from the main body of the oil contained in the lamp, and also confining any explosive gas within the cylinder g,- and as the diaphragms c and 6 completely separate the flame from the gases or oil in the tube g, the lamp becomes practically non-explosive.

Having thus described my invention, Iclaim as new and desire to secure by Letters Patent- The' combination, with a lamp-burner, of a ring having an imperforate cylinder secured to its lower end, the lower portion of said ring provided with screw-threads for its at tachment to the lamp, the screw-threaded portion being slotted vertically, and the shoulder of the ring slotted horizontally, to constitute passages t' for the escape of gases from within the lamp, substantially as set forth.

WALTER MARSH J AOKSON.

Witnesses:

JOSEPH A. ll/IILLER, Jos. A. MILLER, Jr. 

